日光温室冬春茬黄瓜产量与灌水量的关系

Relationship between Irrigation Amount and Yield of Cucumber in Solor Greenhouse

对华北地区日光温室冬春茬黄瓜产量与灌水量的关系进行了研究，黄瓜于１１月２５日播种，翌年１月１０日定植，从定植到拉秧１４０ｄ（天），设５个灌水量处理（１６２．５～４８４．１ｍ３·６６７ｍ－２）。结果表明，黄瓜产量（９１９２～１２９３３ｋｇ·６６７ｍ－２）随灌水量的增加而增加，灌水利用效率则随之减少，黄瓜品质有下降的趋势。利用含盐量２．２ｇ·Ｌ－１微咸水灌溉，土壤盐分累积显著，但土壤表层盐分随灌水量的增加而减少。

The relationship between irrigation amount and yield,quality of cucumber in solar greenhouse was studied in shijiazhuang,Hebei Province. The seedlings were transplanted on 10th,January,40 days after sowing. In 140 days growing period from transplanting to last harvest,five irrigation treatments with different water amount ranged from 2280m 3·hm -2 to 6960m 3·hm -2 were designed. The yield increased with irrigation amount from 9192kg·667m -2 to 12933kg·667m -2 ,but the quality slightly decreased. Water use efficiency (yield/irrigation quantity) declined with increase of irrigation quantity.